He looked up. “I may be able to cut hand- and footholds up the shaft. It’s cursed hot. I wonder if this is old Mali. Imagine if we have come to the birthplace of my ancestors…”

“To the very place where the salt plague began,” I whispered, shuddering.

A shuffling slip-slop echoed out of the darkness.

Slow as molasses, a creature emerged from the gloom of one of the other tunnels. Its steps had the creak of an elder’s, but its body was not frail, only stiff. It had the form of a perfectly proportioned person, not ugly or beautiful, neither male nor female, but all white. Not pale-haired and pale-skinned as northern Celts are, but the stark white of a being whose flesh has solidified into salt, like a salter in the final, morbid phase of the disease. Its eyes were salt-white and blind.

I knew what it was although I had never read a description of such a thing in the tales penned by travelers. Who could see such a sight and live to speak of it? No one could.

It was a ghoul.

A tongue licked the air as it tasted the scent of mortal blood.

The lick of its tongue scraped me despite the gap between us. The blood congealing on the cut on my arm began to flow as if it were being suckled out of my body. A drop of my blood struck the ground, its impact shivering a vibration through the soles of my feet. A bell-like clangor echoed through the tunnels, followed by a dead silence as the ghoul halted.

Chiming cries echoed from the tunnels. Unseen tongues licked the air, tasting for blood. Pebbles and dirt spat down on our heads. Far above us ghouls clustered at the mine’s mouth, eager to taste blood. One walked right off the cliff. It plunged through the spinning dust motes. Vai yanked me back as it hit with a sickening crunch. The ghoul heaved itself up, unbroken, unmarred.

“We have to go back,” said Vai.

I hadn’t known they could move so fast. They were on us, me beating at clawing hands and biting mouths. Cold steel stopped them in their tracks but it did not turn them to salt, not as the cut of my blade had dissolved the salters who had blundered into the sea on the beach at Salt Island.

“Vai! Move!”

Bell voices rang down the mines. Too late I heard a scrape behind us.

A ghoul staggered out of the darkness and lunged at Vai. Just as its mouth was about to close on his arm, he thrust his blade between its jaws. The blade caught its teeth a finger’s breadth from his sleeve.